/Engine/Source/Runtime/Engine/Classes/Engine/World.h
Sweep a shape against the world and return the first blocking hit using a specific channel
TRUE if OutHits contains any blocking hit entries
bool SweepSingleByChannel ( struct [FHitResult](API\Runtime\Engine\Engine\FHitResult) & OutHit, const FVector & Start, const FVector & End, const FQuat & Rot, ECollisionChannel TraceChannel, const [FCollisionShape](API\Runtime\PhysicsCore\FCollisionShape) & CollisionShape, const [FCollisionQueryParams](API\Runtime\Engine\FCollisionQueryParams) & Params, const [FCollisionResponseParams](API\Runtime\Engine\FCollisionResponseParams) & ResponseParam ) const